DATAES-209 - Dynamic mapping using @Mapping Annotation at field level

fix test

fix comment in test

src/main/java/org/springframework/data/elasticsearch/annotations/Mapping.java

@@ -26,7 +26,7 @@ import org.springframework.data.annotation.Persistent;
 @Persistent
 @Inherited
 @Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE})
+@Target({ElementType.TYPE, ElementType.FIELD})
 public @interface Mapping {
 
 	String mappingPath() default "";

src/main/java/org/springframework/data/elasticsearch/core/MappingBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,11 +29,11 @@ import org.apache.commons.lang.math.NumberUtils;
 import org.elasticsearch.common.lang3.StringUtils;
 import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.springframework.core.GenericCollectionTypeResolver;
+import org.springframework.core.io.ClassPathResource;
 import org.springframework.data.annotation.Transient;
 import org.springframework.data.elasticsearch.annotations.*;
 import org.springframework.data.elasticsearch.core.completion.Completion;
 import org.springframework.data.elasticsearch.core.geo.GeoPoint;
-import org.springframework.data.geo.*;
 import org.springframework.data.mapping.model.SimpleTypeHolder;
 import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
@@ -112,6 +112,17 @@ class MappingBuilder {
 				continue;
 			}
 
+			if (field.isAnnotationPresent(Mapping.class)) {
+				String mappingPath = field.getAnnotation(Mapping.class).mappingPath();
+				if (isNotBlank(mappingPath)) {
+					ClassPathResource mappings = new ClassPathResource(mappingPath);
+					if (mappings.exists()) {
+						xContentBuilder.rawField(field.getName(), mappings.getInputStream());
+						continue;
+					}
+				}
+			}
+
 			boolean isGeoPointField = isGeoPointField(field);
 			boolean isCompletionField = isCompletionField(field);
 

src/test/java/org/springframework/data/elasticsearch/entities/FieldDynamicMappingEntity.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.entities;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Mapping;
+
+/**
+ * Sample FieldDynamicMappingEntity for test dynamic mapping using @Mapping Annotation at field level
+ *
+ * @author Ted Liang
+ */
+@Document(indexName = "test-field-mapping-index", type = "test-field-mapping-type")
+public class FieldDynamicMappingEntity {
+
+	@Id
+	private String id;
+
+	@Mapping(mappingPath = "/mappings/test-field-mappings.json")
+	private byte[] file;
+
+	public String getId() {
+		return id;
+	}
+
+	public void setId(String id) {
+		this.id = id;
+	}
+
+	public byte[] getFile() {
+		return file;
+	}
+
+	public void setFile(byte[] file) {
+		this.file = file;
+	}
+}

src/test/java/org/springframework/data/elasticsearch/repositories/setting/FieldDynamicMappingEntityRepository.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.repositories.setting;
+
+import org.springframework.data.elasticsearch.entities.FieldDynamicMappingEntity;
+import org.springframework.data.elasticsearch.repository.ElasticsearchCrudRepository;
+
+/**
+ * FieldDynamicMappingEntityRepository
+ *
+ * @author Ted Liang
+ */
+public interface FieldDynamicMappingEntityRepository extends ElasticsearchCrudRepository<FieldDynamicMappingEntity, String> {
+
+}

src/test/java/org/springframework/data/elasticsearch/repositories/setting/FieldDynamicMappingEntityRepositoryTests.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.repositories.setting;
+
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+import static org.junit.Assert.assertThat;
+
+import java.util.Map;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
+import org.springframework.data.elasticsearch.entities.FieldDynamicMappingEntity;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+/**
+ * FieldDynamicMappingEntityRepositoryTests
+ *
+ * @author Ted Liang
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration("classpath:dynamic-settings-test.xml")
+public class FieldDynamicMappingEntityRepositoryTests {
+
+	@Autowired
+	private FieldDynamicMappingEntityRepository repository;
+
+	@Autowired
+	private ElasticsearchTemplate elasticsearchTemplate;
+
+	@Before
+	public void before() {
+		elasticsearchTemplate.deleteIndex(FieldDynamicMappingEntity.class);
+		elasticsearchTemplate.createIndex(FieldDynamicMappingEntity.class);
+		elasticsearchTemplate.putMapping(FieldDynamicMappingEntity.class);
+		elasticsearchTemplate.refresh(FieldDynamicMappingEntity.class, true);
+	}
+
+	/*
+	DATAES-209
+	*/
+	@Test
+	public void shouldCreateMappingWithMappingAnnotationAtFieldLevel() {
+		//given
+
+		//then
+		Map mapping = elasticsearchTemplate.getMapping(FieldDynamicMappingEntity.class);
+		assertThat(mapping, is(notNullValue()));
+
+		Map properties = (Map) mapping.get("properties");
+		assertThat(properties, is(notNullValue()));
+
+		assertThat(properties.containsKey("file"), is(true));
+		Map file = (Map) properties.get("file");
+		assertThat(file, is(notNullValue()));
+		assertThat(((String) file.get("type")), is("string"));
+
+		assertThat(file.containsKey("fields"), is(true));
+		Map fields = (Map) file.get("fields");
+		assertThat(fields, is(notNullValue()));
+
+		assertThat(fields.containsKey("content"), is(true));
+		Map content = (Map) fields.get("content");
+		assertThat(content, is(notNullValue()));
+
+		assertThat((String)content.get("type"), is("string"));
+		assertThat((String)content.get("term_vector"), is("with_positions_offsets"));
+		assertThat((Boolean)content.get("store"), is(Boolean.TRUE));
+	}
+}

src/test/resources/mappings/test-field-mappings.json

@@ -0,0 +1,10 @@
+{
+    "type": "string",
+    "fields": {
+        "content": {
+            "type": "string",
+            "term_vector":"with_positions_offsets",
+            "store": true
+        }
+    }
+}